Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionFirst Western Trust Bank
Latest Disclosed Ownership8,867 shares
Latest Disclosed Value $ 4,358,621
First Western Trust Bank reports 0.34% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 12, 2026 - First Western Trust Bank filed a 13F-HR form disclosing ownership of 8,867 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $4,358,621 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 8,897 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -0.34% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 8,867 -30 -0.34 4,359 -15.46 0.1356
2026-02-12 2025-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 8,897 -45 -0.50 5,156 18.86 0.2535
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 8,942 -525 -5.55 4,337 13.00 0.1992
2025-08-08 2025-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 9,467 -801 -7.80 3,839 -24.88 0.1726
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 10,268 -752 -6.82 5,110 -10.88 0.2447
2025-02-13 2024-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 11,020 -847 -7.14 5,733 -21.89 0.2648
2024-11-07 2024-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 11,867 -1,353 -10.23 7,341 0.41 0.3301
2024-08-05 2024-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 13,220 -2,038 -13.36 7,311 -17.57 0.3480
2024-05-16 2024-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 15,258 -623 -3.92 8,868 5.21 0.4038
2024-02-07 2023-12-31 13F THERMO FISHER CORP COM Common Stock 883556102 15,881 -1,131 -6.65 8,430 -2.11 0.4196
2023-11-14 2023-09-30 13F THERMO FISHER CORP COM Common Stock 883556102 17,012 -783 -4.40 8,611 -7.25 0.4630
2023-08-11 2023-06-30 13F THERMO FISHER CORP COM Common Stock 883556102 17,795 -518 -2.83 9,285 -12.04 0.4537
2023-05-15 2023-03-31 13F THERMO FISHER CORP COM Common Stock 883556102 18,313 669 3.79 10,555 8.64 0.5500
2023-02-10 2022-12-31 13F THERMO FISHER CORP COM Common Stock 883556102 17,644 448 2.61 9,717 11.41 0.5576
2022-11-09 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 17,196 440 2.63 8,721 -2.88 0.5866
2022-08-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 16,756 -1,071 -6.01 8,980 -15.35 0.5959
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 17,827 17,827 10,609 0.5451
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.